I had my routine blood work done yesterday, the Nurse who took my blood made me jump pretty god hen she stuck me, within seconds after the stick, My upper arm became tight and swollen, I thought nothing of it, and then as the day went on it got worse, I went to bed & woke up this morning to find a bruise forming around my upper arm where the pain is still at, as the day is going on it is getting darker. Should I be worried about this?